Problem 47 - Objective Biology for NEET

Question

Which term is used both for a part of kidney and a part of skeleton in the mammals? (a) Centrum (b) Pelvis (c) Cortex (d) Medulla

Step-by-Step Solution

Answer

The term used both for a part of kidney and a part of skeleton in the mammals is Pelvis.

Step 1: Analyze the options

Look at each option individually and determine its association with the kidney or skeleton of mammals. Centrum is a part of the vertebrae in the skeleton, the cortex is the outer layer of the kidney, the medulla is the inner part of kidney.

Step 2: Identify common term

Identify which of the options is associated with both the kidney and the skeleton. In our case, the option is Pelvis, which is part of both the mammalian skeleton and kidney.

Key Concepts

Mammalian Kidney

The mammalian kidney plays a crucial role in the body's excretory system, responsible for filtering waste products from blood and maintaining homeostasis, including water balance and blood pressure.

When looking at the mammalian kidney, we encounter various anatomical structures such as the renal cortex, renal medulla, renal pelvis, and nephrons. The renal cortex is the kidney's outer layer, where blood filtration begins; the renal medulla houses the structures of the nephrons responsible for concentrating the urine; while the renal pelvis is a funnel-like space where the processed urine is collected before moving to the ureters.

Understanding Nephrons

Within the cortex and medulla, nephrons, the functional units of the kidney, carry out the intricate process of filtering blood, reabsorbing nutrients, and secreting wastes. Students often struggle to grasp how each part of the nephron contributes to kidney function. For instance, the glomerulus filters the blood, whereas the tubule system adjusts the filtrate to form urine.

Understanding these components and their roles in the kidney is vital for students to tackle exercises on this topic, especially when preparing for competitive exams like NEET Biology.

Skeletal System

The skeletal system provides a framework for the body, facilitates movement, and offers protection to vital organs. It is composed of bones and connective tissues, including ligaments and cartilage.

One of the essential components of the skeletal system is the pelvis, which can also be a source of confusion for students due to its association with the kidney. In the context of the skeletal system, the pelvis refers to a basin-shaped complex of bones that connects the spine to the lower limbs and supports organs within the pelvic cavity, like the bladder and, in females, the reproductive organs.

Exploring the Skeletal Pelvis

Understanding the pelvic bone's role and its connection to surrounding structures can help clarify some multifaceted concepts. The pelvis's protective role is highlighted in scenarios such as shield of reproductive organs or support for the abdominal cavity's weight.

Familiarity with the skeletal pelvis's anatomy helps students appreciate its place in the skeletal system and its namesake within the kidney – addressing a common point of confusion and ending up as a frequently asked question in exams like NEET Biology.

NEET Biology

NEET Biology encompasses extensive syllabi, including both botany and zoology. Key areas under zoology include human anatomy and physiology, wherein detailed knowledge of the mammalian skeletal system and kidney proves essential.

Exercises involving comparisons or shared terminologies between different organ systems embody the complex nature of biology questions in competitive exams like NEET. For instance, the term 'pelvis' refers to both a part of the kidney and a part of the skeletal system, illustrating the interdisciplinary nature of anatomical vocabulary.

Preparation Tips for Students

This type of question is typical within NEET, testing students' ability to draw connections between organ systems. To excel in these examinations, students should focus on understanding anatomical structures in depth and practicing questions that test their application in different biological contexts. Providing elaborate explanations and integrating concepts helps in better retention and prepares students for the intricate types of questions they will encounter.